/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 1993-2002 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" /* * get timestamp from device */ #include <meta.h> /* * get timestamp */ int getdevstamp( mddrivename_t *dnp, time_t *stamp, /* return timestamp here */ md_error_t *ep ) { int fd; int partno; struct vtoc vtocbuf; mdname_t *np; if ((np = metaslicename(dnp, MD_SLICE0, ep)) == NULL) return (-1); /* open given device */ if ((fd = open(np->rname, O_RDONLY | O_NDELAY, 0)) < 0) return (mdsyserror(ep, errno, np->cname)); /* re-read vtoc */ if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) { (void) close(fd); return (-1); } /* close device */ (void) close(fd); /* sd/ssd bug */ /* return timestamp, success */ *stamp = vtocbuf.timestamp[partno]; return (0); } /* * returns * 0 on success, * ENOTSUP if it's not a device with a vtoc * -1 on failure */ int setdevstamp( mddrivename_t *dnp, time_t *stamp, /* returned timestamp */ md_error_t *ep ) { int fd; int partno; struct vtoc vtocbuf; time_t now = time(NULL); mdname_t *np; if ((np = metaslicename(dnp, MD_SLICE0, ep)) == NULL) return (-1); /* open for vtoc */ if ((fd = open(np->rname, O_RDWR | O_NDELAY, 0)) < 0) return (mdsyserror(ep, errno, np->cname)); if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) { (void) close(fd); if (partno == VT_ENOTSUP) return (ENOTSUP); else return (-1); } *stamp = vtocbuf.timestamp[partno] = now; if (meta_setvtoc(fd, np->cname, &vtocbuf, ep) == -1) { (void) close(fd); return (-1); } /* Clear the timestamp */ vtocbuf.timestamp[partno] = 0; if (meta_getvtoc(fd, np->cname, &vtocbuf, &partno, ep) == -1) { (void) close(fd); return (-1); } (void) close(fd); /* sd/ssd bug */ if (*stamp != vtocbuf.timestamp[partno]) return (mddeverror(ep, MDE_CANTVERIFY_VTOC, NODEV64, np->cname)); return (0); }